What Does Mounting Drive Means
Mounting Drive means making the drive accessible to the computer, by which the user will be able to read and write the data to the disk on which he/she mounted that particular drive.
What is&nbs...

File Ownership and Permissions
It is important in multi-user system to ensure that files of one user cannot be accessed by another user, until and unless user is permitted to access the files. The user who creates the file, is by default the o...

How to Enter Single User Mode in Linux
In single user mode only the system administrator can log in the account. Some of the administrative operations can only be done in single user mode. For example:
i) Unmounting a user partition.
ii)...

df, du and tree in Linux
The 'df' command is the simplest tool to view disk usage. Using it without any switches will display the result in block of usage which is not understandable especially for home users. Use the '-h...

LILO: Linux Loader is the traditional boot loader and it is perhaps still used in servers that run Linux as their Operating system. Grub or the GRand Unified Boot Loader replaced it as the 'cool' and secure alternative.
LILO ...

In Linux or Unix based OS create file into two parts ::
1. Data part : it contains the information regarding the iNode number of the file along with the variuos permission on that file.
2. Filename part : contains the name of file and inode...

Linux OS developed by Linus Torvalds in '91 is based on Unix OS . It's core functionalities have been greatly inspired and adopted from Unix but unlike Unix , Linux can also run on small devices with low hardware capacities, Linux i...

Changing Permissions At Command Prompt
This is accomplished by using the "chmod" command. The chmod is followed by a 3 digit number used to indicate the permissions required. The first 3 digit indicated the owner's perm...

Hello friends, I am writing this blog which will let you know how to create a file using cat command.
Using cat to create a file
cat is useful for creating a file. Enter the command cat, followed by the > (the right chevron) character an...

Sometimes our requirement is to export/download the latest database from live/test server.
We can easily create the dump on our server and then copy paste it from server to your local machine using Win-Scp.
But the issue comes when the...

The simplest and the easyest way to install anything on Linux is throught Terminal
1. Open terminal using ALT+CTRL+T
2. Type command shown below:
sudo apt-get install openjdk-7-jdk
Note: in : openjdk-7-jdk, 7 is for demonstration, you can c...

Linux by default cannot run windows application directly, both operating systems are too different. There are tons of Linux applications which are available and ready to install and use.
If you want to use windows programs on Linux than you ne...

Output of most of the commands in Linux can be modified by using options/switches. ls command is also not an exception.
ls command is used to list the contents of a directory. It has lots and lots of switches to customize its output.
Switches...

All of us have been writing some kind of cron but recently we came a situation where cron has to be fired by weekly on Wednesday. Keeping in mind the client requirement we came to a particular solution.
Minute Hour date-Of-Month Month Day-Of-W...

If you are using bash, here are some time saving tips that can come handy in day to day tasks of every Linux user. This list is not exhaustive in any manner and is compiled from various Q&A sites and forums.
Use CTRL+R to search through...

The default editor generally with linux terminal is vi editor and if you edit crontab etc. it by default opens up using vi editor.
To change this default behavior and set the editor to nano you can use command
export EDITOR=nano
after ...

The official JDK is provided by Oracle but is not provided as default installation by ubuntu
You can install Oracle JDK using apt-get by adding the repositories and then using apt-get command.
To add the repository issue the following comm...

When on Linux you may see that file system may behave strangely sometimes which is generally due to corrupt inodes or in all the complete file system.
To overcome this you may want to run a file system check using fsck command.
But ...